Area Forecast Discussion
Issued by NWS Burlington, VT

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406 FXUS61 KBTV 280731 AFDBTV Area Forecast Discussion National Weather Service Burlington VT 331 AM EDT Tue May 28 2024 .SYNOPSIS...
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A series of fronts moving through will promote rounds of scattered afternoon showers over the next couple of days. Cooler conditions are expected for Wednesday with noticeably lower humidity. A gradual warming trend with mainly drier weather can be expected going into the weekend.
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&& .NEAR TERM /THROUGH WEDNESDAY NIGHT/...
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As of 323 AM EDT Tuesday...A cold front will move through the area today associated with a low pressure system to our north. Along with the passage of the cold front, a dry slot has worked in which has allowed the threat for heavy rainfall to come to an end. This morning began with precipitable water values of 1.5+ inches as per RAP soundings, but PW values drop to under 1.0 inch by daybreak today. As an upper-level trough slides over the area today, steepening lapse rates will promote development of some scattered afternoon showers. A few embedded thunderstorms are possible but with only shallow moisture and instability, not expecting any severe weather. A secondary cold front will drop through this evening into Wednesday, followed by a cooler and drier air mass. During the day Wednesday, some widely scattered showers will develop as the front sags southward, but only have PoPs peaking in the 15-30 percent range. Highs Wednesday will be in the 60s to around 70, with refreshing dewpoints in the 40s to around 50.
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&& .SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/...
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As of 323 AM EDT Tuesday...The cold front will continue to push south and east away from the region Wednesday night, bringing any lingering showers to an end overnight. The upper trough will swing into the region from north to south Thursday and Thursday night. However, a much drier airmass will follow the frontal passage, with inverted-v type profiles and PWATs 0.50 inch or less. So while expect increasing clouds during the day Thursday, especially over the higher terrain, daytime hours will mostly by dry. That being said, have kept a slight chance of showers across far southern and eastern VT as better moisture will be poised just outside of our CWA border. Thursday night will likewise be dry, with clearing skies once we lose daytime heating. With dry air in place, light winds, and partly to mostly clear skies, expect decent radiational cooling both Wednesday and Thursday nights; lows will mainly be in the 40s, though some of the usual cold spots in the Adirondacks and Northeast Kingdom could well drop into the 30s. Thursday`s highs will be seasonable though perhaps a couple of degrees cooler than normal; expect most places to top out in the mid 60s to around 70F.
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&& .LONG TERM /FRIDAY THROUGH MONDAY/...
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As of 323 AM EDT Tuesday...Ridging will build over the region for week`s end while the upper trough swings away out over the Atlantic. The result will be fair and dry weather through at least Saturday. Ridging breaks down by Sunday, with a few upper shortwaves progged to slide along or just south of the international border. This could allow for more showery conditions Sunday and Monday, though have stayed close to the NBM PoPs for now given timing uncertainty; this gives slight-low chances for showers for early next week. Temperatures will exhibit a warming trend though this period; Friday`s highs will be near normal (upper 60s to low 70s), but expect much of the area to be approaching or exceeding 80F by Monday.
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&& .AVIATION /08Z TUESDAY THROUGH SATURDAY/... Through 06Z Wednesday...Heavier rain from earlier this morning has come to an end, with only some spotty lighter showers remaining. Ceilings are generally VFR to start the TAF period, but will lower to generally MVFR through the morning, though expecting some intervals of low VFR mixed in at most TAF sites. After 13Z, expect most TAF sites to lift to VFR with the exception of KSLK and KMSS, which will stay MVFR through much of the day today. Expecting ceilings to lower to widespread MVFR after 00Z. Winds will be from the south/southwest at 5-10 knots this morning, gradually becoming west this afternoon and northwest by this evening. Some afternoon gusts 15-20 knots are expected, especially over KMSS and KBTV. Outlook... Wednesday: VFR. Chance SHRA. Wednesday Night: VFR. Slight chance SHRA. Thursday: VFR. Chance SHRA. Thursday Night: VFR. Slight chance SHRA. Friday: VFR. NO SIG WX. Friday Night: VFR. NO SIG WX. Saturday: VFR. NO SIG WX. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...None. && $$ SYNOPSIS...Duell NEAR TERM...Duell SHORT TERM...Hastings LONG TERM...Hastings AVIATION...Duell